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25 Biology questions (and their answers)

25 Biology questions (and their answers)

October 2, 2022

Just as the mind and consciousness awaken interest, life itself does not escape the curiosity of the human being who wishes to have knowledge of everything. It is normal that Biology is an interesting science , because it looks for answers related to the functioning of life itself.

25 Biology questions to test your knowledge

In the following article you will find a selection of Biology questions (with your answers) that any student or interested in this science should know how to respond without problems. Having said that, I begin.

1. What is the cell?

The cell is the fundamental unit of life . Whether we speak of a being formed by a cell (unicellular) or by a set of them (multicellular), this element is always present. Thanks to its differentiation in functions, evolution has given way to increasingly complex organisms.


  • Maybe you're interested: "Types of major cells of the human body"

2. Who was Robert Hooke?

Hooke was an English scientist who coined the word cell after seeing them for the first time. This researcher observed a sheet of cork with a microscope, seeing a network of voids (hence the name of cell), although he did not know how to associate this with the real functions of these small microscopic bodies.

3. What is the difference between prokaryotic and eukaryotic cells?

The main differences between the two major cell types are the fact that prokaryotes (eg bacteria) do not have any organelles inside them (complexes that perform functions) and its genetic material is free inside the free membrane , and not in a nucleus as in the case of eukaryotes.


4. And the difference between plant and animal cells?

The answer to this question about Biology is easy, the big differences are that only plant cells have cell walls, which generate the rigidity that characterize plants, and have organelles known as chloroplasts, which are responsible for photosynthesis.

5. Who was Louis Pasteur?

Louis Pasteur is considered the "father of modern microbiology", because thanks to his work refuted the idea of ​​spontaneous generation , showing that life does not appear by chance. It is also known for its sterilization technique: pasteurization.

6. What does the theory of biogenesis say?

This question of Biology is related to the previous researcher, since the theory of biogenesis indicates that a previous life is needed to generate life. That is, life is not generated from nothing.


  • Maybe you're interested: "Theory of biogenesis: explaining the appearance of life

7. What do you mean "sterilized"?

To say that an environment is sterilized means that in principle all forms of life have been eliminated, even at the level of microorganisms, of that environment.

8. Who was Charles Darwin?

Darwin was an English naturalist, who, along with Russel Wallace, promoted the idea of ​​biological evolutionary theory through natural selection , mechanism that tries that who survives has more possibilities of reproducing itself.

  • Related article: "The theory of biological evolution"

9. What is the biological evolutionary theory?

Related to Darwin is evolutionary theory, which indicates that current living beings are the result of progressive changes in the successes and reproductive failures of the ancestors . These ideas eliminated the hand of God in the explanation of the creation of the species.

10. What is genetic material?

A question about Biology quite important. If before he spoke of the cell as the unit of life, the genetic material is the basis for it. In it the information for the creation of the cell is saved, as well as all its functions.

11. What is duplication, transcription and translation about?

As a general rule, the cell keeps its information in the form of DNA. Duplication occurs when an identical copy of DNA is made for cell division. Transcription is the passage of DNA to a messenger RNA chain , and the translation is the step of the latter to a protein.

12. What is a protein?

A protein is a chain of amino acids (AA), which the cell uses as a tool to perform its functions.

13. What is the difference between DNA and RNA?

I will answer this question very briefly. Without going into many details, the differences are at a structural and functional level.

14. Who was Gregor Mendel?

Mendel was a monk and naturalist who is considered the father of genetics for his famous studies with peas, revealing many of the mysteries of genetic inheritance.

15. What is a gene?

DNA is made up of a chain of nucleic acids (AN). The gene is a fragment of this, and contains the information to create a specific protein , mainly.

16. What is the genetic code?

The genetic material has its own language. In a simple way, the order of the AN that forms the DNA offers information, be it a gene or an initiation sequence, for example.

17. What is the cell cycle in eukaryotes?

Eukaryotic cells follow a life cycle, and their purpose is cell division. This presents four phases, differentiated into two large groups: the interface, where the cell is prepared for its division; and the M phase, where the partition is carried out in more than one cell.

18. What are the differences between mitosis and meiosis?

There are two types of cell division, which differ mainly in their result. While in mitosis two identical cells are formed, in meiosis it concludes with four cells and each one has a single DNA chain, instead of two.

  • Related article: "Differences between mitosis and meiosis"

19. What is a mutation?

This Biology question refers to one of the errors that can occur in DNA. The mutation is nothing other than a change in the sequence of a gene , changing the meaning of this information.

20. What is apoptosis about?

Just as we talk about proliferation, cells also have programmed cell death. This process is known as apoptosis.

21. What is metabolism?

Metabolism refers to all chemical or physicochemical reactions which carry out the cells or organisms.

22. What is an ecosystem?

All living beings, like animals and plants, have a relationship both with each other and with the environment that surrounds them. The whole of this is what we know as an ecosystem.

  • Related article: "The 6 types of ecosystems: the different habitats we find on Earth"

23. What differentiates gymnosperms from angiosperms?

The answer to this question related to plants is the following: gymnosperms do not have showy flowers, unlike angiosperms.

24. What differentiates invertebrates from vertebrates?

Another general classification, in this case referred to the animal kingdom , is the division between vertebrates and invertebrates. The first ones present a bone structure, and the second, no.

25. What types of reproduction are there?

Generically, there are two types of reproduction: the asexual and the sexual. The difference is that the second makes use of gametes (eg sperm).


General Science Biology General Knowledge Questions and Answers for all competitive exams (October 2022).


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